DEMO PREVIEW — Synthetic data for illustration. The live system runs on a private Sphere with real Bitcoin mainnet data.
B

PreBlock v1.0

Mempool Radar

Predictive Mining from live mempool data — block lookahead +1/+2/+3 with hit-rate tracking

Bitcoin Knots Spam-Filter active
Clean Blocks
~95% spam removed

We filter Ordinals, Inscriptions and other non-financial payload at node level. That is why this mempool looks smaller than mempool.space (Bitcoin Core) — but every TX you see here is real money. Predictor and DATUM template only work with paying transactions.

Predictive Mining & System Health
Your mempool predictions flow via prioritisetransaction into Bitcoin Core. DATUM Gateway forwards these templates to your 9 miners.
Mining Feeder
0TXs
⚠ Not configured
Telegram Alerts
10 Events
System Components
Mempool-Streamer
DATUM-Gateway
MongoDB
Last check: 7:37:59 PM
Predictive Hit-Rate — how well do our predictions perform?
Comparison of our block +1/+2/+3 bucket predictions against actual blocks. Higher values = better Mempool predictive performance.
Bucket +1 (~10 min ahead)
91.6%
Range: 17.59% – 99.93% · n=30
Bucket +2 (~20 min ahead)
81.4%
Range: 2.95% – 94.19% · n=30
Bucket +3 (~30 min ahead)
70.0%
Range: 0% – 83.4% · n=30
Based on last 30 blocks · Live update with each new block
Mempool Streamer
OFFLINE

last snapshot 208975s ago

Block tip
#955320

0000000000000000…

Mempool
12,847

top-fee: – sat/vB

Signals (24h)
0

11 open

What-if — live threshold simulation
Move the sliders — the effect on historical TXs is shown live below. Only when you click on "Activate these thresholds" is the threshold actually pushed to the worker.
Currently active:
val ≥ 10 BTC · dormant ≥ 5y · fee ≥ 50 sat/vB
Would trigger (window: 24h)
0
of 0 TXs
Would drop
0
under threshold
Match reasons
value: 0
dormant: 0
fee: 0
Currently actual
0
Signals (stored)
10.0 BTC
0 BTC (everything)1000 BTC (extreme)
5.0 years
0y (fresh)15y (Satoshi era)
50 sat/vB
0 sat/vB500 sat/vB (express TXs)
last 24h
1h7 days
⚠️ No TX data available for simulation yet. The mempool streamer must first collect data. Sliders already work — hit counts will appear as soon as the worker runs.
Multi-block lookahead — pre-heated templates (block +1 / +2 / +3)
What the big pools also do: hold 3 block templates in memory in parallel, switch in <50 ms on tip change. Data flows 1:1 like on mempool.space — sorted by fee rate, with your threshold-hit markers.
Block
#955321(+1)
high
TXs:4127
vSize:3.95 MB
Fees:0.0824 BTC
Fee-Rate:0–0 sat/vB
Output Value:142.60 BTC
Legacy Inputs:0
Max Dormancy:8.3 y
Top hits in bucket
0.0₿0y
0.0₿0y
0.0₿0y
0.0₿0y
0.0₿0y
Block
#955322(+2)
medium
TXs:3984
vSize:3.90 MB
Fees:0.0612 BTC
Fee-Rate:0–0 sat/vB
Output Value:98.40 BTC
Legacy Inputs:0
Max Dormancy:6.1 y
Top hits in bucket
0.0₿0y
0.0₿0y
0.0₿0y
0.0₿0y
0.0₿0y
Block
#955323(+3)
low
TXs:3651
vSize:3.85 MB
Fees:0.0478 BTC
Fee-Rate:0–0 sat/vB
Output Value:67.20 BTC
Legacy Inputs:0
Max Dormancy:4.9 y
Top hits in bucket
0.0₿0y
0.0₿0y
0.0₿0y
0.0₿0y
0.0₿0y
Latest threshold hits
58139755c2eee1a7d2d6…2026-06-26T09:09:48.560000
95.799 BTC · 71 sat/vB · age: 9.4y ·
524189e8bafba5ed127d…2026-06-26T08:43:48.560000
89.9 BTC · 196 sat/vB · age: 6.6y ·
1a15ff7b328c01b79c17…2026-06-26T08:19:48.560000
115.3808 BTC · 217 sat/vB · age: 9.1y ·
37c52f508fabbe02042d…2026-06-26T06:36:48.560000
303.3444 BTC · 115 sat/vB · age: 9.1y ·
187d5d4b0a405e657409…2026-06-26T06:36:48.560000
287.1678 BTC · 176 sat/vB · age: 8.2y ·
3c81991483bb1405bce3…2026-06-26T05:43:48.560000
20.0803 BTC · 192 sat/vB · age: 6y ·
a4e7b966c480ab78aba1…2026-06-26T05:36:48.560000
116.2053 BTC · 92 sat/vB · age: 11.7y ·
5ec669f0ee30e8aa09aa…2026-06-26T03:23:48.560000
92.4186 BTC · 218 sat/vB · age: 9.1y ·
576d092f1b70e48f6952…2026-06-26T03:04:48.560000
172.0228 BTC · 234 sat/vB · age: 6y ·
62457873e4ae1bf51dcc…2026-06-26T01:13:48.560000
150.2434 BTC · 168 sat/vB · age: 8.1y ·
58b412de880d2d9c1095…2026-06-26T00:49:48.560000
30.8282 BTC · 223 sat/vB · age: 8.6y ·
3d6280fb4d314c0d3f1d…2026-06-25T22:36:48.560000
170.5899 BTC · 82 sat/vB · age: 8.4y ·
551ba730a29246c532fc…2026-06-25T22:08:48.560000
285.9282 BTC · 94 sat/vB · age: 11y ·
5bb21b116c2fbad28076…2026-06-25T22:06:48.560000
358.2065 BTC · 82 sat/vB · age: 9.7y ·
27f6808b948b7dc57695…2026-06-25T21:37:48.560000
338.8496 BTC · 89 sat/vB · age: 7.8y ·
Block events (last 10)
#955319nTx: 2026-06-26T09:25:48.560000
#955318nTx: 2026-06-26T09:15:48.560000
#955317nTx: 2026-06-26T09:05:48.560000
#955316nTx: 2026-06-26T08:55:48.560000
#955315nTx: 2026-06-26T08:45:48.560000
#955314nTx: 2026-06-26T08:35:48.560000
#955313nTx: 2026-06-26T08:25:48.560000
#955312nTx: 2026-06-26T08:15:48.560000
#955311nTx: 2026-06-26T08:05:48.560000
#955310nTx: 2026-06-26T07:55:48.560000